Elbow pipe apparatus



FIG. 1 is a rear-left perspective view of an elbow pipe apparatus according to the present invention.

FIG. 2 is a front view of the elbow pipe apparatus.

FIG. 3 is a rear view of the elbow pipe apparatus.

FIG. 4 is a left side view of the elbow pipe apparatus.

FIG. 5 is a right side view of the elbow pipe apparatus.

FIG. 6 is a top view of the elbow pipe apparatus; and,

FIG. 7 is a bottom view of the elbow pipe apparatus.

The broken lines in the figures illustrate portions of the elbow pipe apparatus that form no part of the claimed design. 

CLAIM The ornamental design for an elbow pipe apparatus, as shown and described. 